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23 Cards in this Set
- Front
- Back
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Parallels
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Circles that run east and west around the world parallel to the equator.
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Latitude
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Measured in degrees the angular distance north or south of the equator.
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Meridian
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Semi circle on the earth that runs from pole to pole.
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Prime Meridian
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The meridian that passes through Greenwich England designated as zero degrees.
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Longitude
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Angular distance east or west of the Prime Meridian.
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Geomagnetic Poles
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Point on the earth's surface above a pole of the earth's imaginary internal magnet.
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Magnetic Declination
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Angle between the direction of the earth's geographic pole and the direction in which a compass needle points.
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True North
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Direction of the geographic north pole.
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Catagraphy
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The study of the science of mapmaking.
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Map Projection
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Flat map that represents a three dimensional curved surface.
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Mercator Projection
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Map projection in which the meridians appear as strait, parallel, evenly spaced lines and form a gride with the parallels, which appear as strait, parallel, unevenly spaced lines.
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Gnomonic Projection
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Map projection in which the parallels appear as unevenly spaced, concentric circle, the meridians appear as straight lines radiating from a central point, and all other great circles appear as straight lines.
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Conic Projection
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Map projection in which the meridians converge at the poles; the parallels appear as equally spaced, concentric curves.
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Polyconic Projection
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Map made by fitting together a series of conic projections of adjoing areas.
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Legend
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List of map symbols and their meanings.
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Scale
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Relationship between distance shown on a map and actual distance.
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Topographic Map
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Map that shows the surface features of the earth.
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Topography
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Surface features of the earth.
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Elevation
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Height above sea level.
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Mean Sea Level
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Point midway between the highest and lowest tide levels of the ocean.
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Contour Lines
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Lines on a map connecting points with the same elevation.
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Contour Inverval
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Difference in elevation between one contour line and the next.
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Relief
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Difference in elevation between the highest and lowest points of an area.
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